Seiko Instruments (SII) strives to provide new value in the fields of 32.768KHz Quartz Crystal Resonators, Rechargeable Batteries and Capacitors, Silver Oxide Batteries, and Samarium Cobalt Magnets (DIANET). Since our founding, SII has created a culture based on the philosophy of evolving our technologies for “Craftsmanship, Miniaturization, and Efficiency.”

https://www.sii.co.jp/en/elec/